1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
evablogger [386]
3 years ago
12

A roller coaster car has a mass of 400kg and a speed of 15m/s What will be the P.E of this roller coaster car at its highest poi

nt ,where KE =0 at that point
Physics
1 answer:
Nutka1998 [239]3 years ago
5 0

Answer:

3000J

Explanation:

Given parameters:

mass  = 400kg

speed  = 15m/s

Unknown:

P.E at the highest point of the roller coaster = ?

Solution:

Due to the law of conservation of energy, the potential energy at the highest point can be solved using the formula of the kinetic energy

  Potential energy  = \frac{1}{2} mv²

m is the mass

v is the velocity

    Potential energy =  \frac{1}{2}  x 400 x 15  = 3000J

You might be interested in
Yes or no
Tju [1.3M]

Answer:

1. No, it is a colloid

2. Yes

Explanation:

8 0
2 years ago
Moons that show few craters probably
ch4aika [34]

Moons that display few craters presumably. They all pass straight over the equator of the globe. Uranus's five biggest moons. have the closest magnetic field axis.

<h3>Which 4 moons are known?</h3>

There are many fascinating moons around the globe, but the Galilean satellites—Io, Europa, Ganymede, and Callisto—the first four moons identified beyond Earth—hold the most scientific curiosity.

<h3>Can Earth have Two moons?</h3>

Moon and Earth

The basic explanation is that Earth only has one moon, that we name “the moon”. It is the biggest and brightest object in the night sky, and the only solar system body except Earth that humanity have visited in our space travel activities.

To know more about Moons visit:

brainly.com/question/13047581

#SPJ4

4 0
1 year ago
Earth's Moon is considered to be geologically dead because its interior has cooled considerably. Select the features of Earth th
DochEvi [55]

Answer:

The correct option is;

E. motion of tectonic plates.

Explanation:

The Moon is formed from the Earth, and so have similar composition. However, the smaller size of the moon as well as the low temperature of the Moon's mantle compared to the interior of the earth, contribute the state of the Moon having no active tectonic plate motion and no convection.

The convection in the mantle, drives Earth's tectonic plate motions. The mantle within Earth moves at a rate of some centimeters annually, while the Moon, geologically is a dying world.  

4 0
3 years ago
Read 2 more answers
PLEASE HELPPP IT DUES IN 30 minutes
Nuetrik [128]

Answer:

140m

70sec I cant show my work but I gave you a push

Explanation:

Brainliest?

6 0
3 years ago
A DC motor with a ticking sound that corresponds with a discolored commutator bar rotating under the brushes. The problem is mos
sukhopar [10]

The problem is most likely that the commutator brushes bounces as the motor shaft rotates.

<h3>What is a DC motor?</h3>

This is referred to a device which converts direct current electrical energy into mechanical energy.

if the commutator brushes bounces as the motor shaft rotates over different materials, the ticking sound is heard.

Read more about DC motor here brainly.com/question/15721280

#SPJ1

8 0
2 years ago
Other questions:
  • Periodic trends vary as we move across the periodic table. In general, as you move across a row in the periodic table A) ionic s
    13·2 answers
  • What occurs when large change direction after colliding with particles of matter
    11·1 answer
  • A balanced relationship between the energy that you intake and your bodys energy output is the definition of _____.
    7·1 answer
  • Which of the following would double the amount of current flowing through a piece of metal wire? Which of the following would do
    5·1 answer
  • A Van de Graaff generator is one of the original particle accelerators and can be used to accelerate charged particles like prot
    14·1 answer
  • Weight is measured in: grams, kilograms, metric tons, or pounds
    5·1 answer
  • A liquid of density 830 kg/m3 flows through a horizontal pipe that has a cross-sectional area of 1.20 x 10-2 m2 in region A and
    10·1 answer
  • "What is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 5.9 m and an e
    15·1 answer
  • You have a grindstone (a disk) that is 98.0 kg, has a 0.335-m radius, and is turning at 100 rpm, and you press a steel axe again
    5·1 answer
  • The equivalent resistance of a series combination of resistors is always greater than any individual resistance
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!